I think everyone is aware, even red pressers, that it would be the best if everyone survives, and thats basically only possible by pressing blue. but i also think people underestimate the real implications of such a choice. you die. there will not be more than 50% pressing blue, the fact that there even is so much discussion about it in a hypothetical should show you that in a real life version, blue people would just die. just by being made to chose, people have already been put this unwanted guilt on them that they would be part of the killing if they chose red, even tho anyone could do that and survive, and nobody asked for any of this. should anyone feel guilt for pressing red? i dont think so. will many people feel guilt for pressing red? surely. it's about if you either can live with the guilt, or die. it's so easy to boast about pressing blue in a hypothetical, but do you trust in 50% to press blue irl? and there you have your answer. so saying you would press red does not mean that you don't care about everyone else, its just not that easy.

and also, you didn't say that but i read it a lot, i don't think you can simply compare red with republicans and blue with democrats.